A textbook model of a contagious disease, the dynamics of which are represented by the SIS epidemic model with saturating treatment, is considered. I show that this model, as originally formulated, is not dimensionally consistent. The model can be fixed by including a dimensional constant [alpha] of value one (with units individuals[superscript…

This article reports on a pilot study that used concrete materials and TinkerPlots to support a Year 4 student's understanding of the big ideas of variation and expectation when investigating a random chance experiment using spinners.

A long-running collaboration between Kaurna people and linguists in South Australia began in 1989 with a songbook. Following annual community workshops and the establishment of teaching programs, the author embarked on a PhD to research historical sources and an emerging modern language based on these sources. In response to numerous requests for…

A facilitator is considered to act intentionally when they are deliberate about what they are doing and can provide rationales for their actions. The same facilitator is said to practice intuitively when they are not able to articulate a clear rationale for their actions, yet they are still able to facilitate effectively. A review of the…